Method and device for suspension of a cab on a vehicle frame

Abstract

The invention related to a process for suspending on a vehicle frame a driving cab which has two-point suspension. Assembly involves the cab being lowered towards the frame by means of a lifting device so that a contact device fitted to the cab is caused to rest on the portions of a supporting device which protrude on either side of a supporting unit mounted on the frame. This means that the cab lies in a stable manner against the frame and that the fastening apertures of the contact device and of the supporting device are placed centrally to one another. The lifting device can therefore be released and the contact device be secured to the fastening device, thereby fixing the contact device relative to the supporting device but leaving the supporting device freely rotatable in the supporting unit.

What is claimed is:  
     
       1. A process for fitting a drive cab to a vehicle frame comprising the steps of: 
       applying a supporting unit to one of the cab and the frame and applying a contact device to the other of the cab and the frame;  
       extending a supporting device through the supporting unit so that respective portions of the supporting device protrude from opposite sides of the supporting unit;  
       placing respective apertures that extend through the contact device for being aligned with the supporting device at opposite sides of the supporting unit where the supporting device protrudes;  
       resting shaped portions of the contact device on the protruding portions of the supporting device with the apertures in the contact device aligned with the supporting device; and then  
       securing the contact device to the supporting device through the apertures in the contact device.  
     
     
       2. The process of  claim 1 , further comprising disposing an elastic device having a sleeve therein in the supporting unit, and passing the supporting device through the elastic device until the supporting device protrudes from opposite sides of the supporting unit, whereby the supporting device is supported by the elastic device in the supporting unit. 
     
     
       3. The process of  claim 2 , further comprising after passing the supporting device through the supporting unit, securing the supporting device in its position in the supporting unit protruding from the supporting unit, before applying the contact device to the supporting device. 
     
     
       4. The process of  claim 1 , further comprising after passing the supporting device through the supporting unit, securing the supporting device in its position in the supporting unit protruding from the supporting unit, before applying the contact device to the supporting device. 
     
     
       5. The process of  claim 1 , further comprising pushing a fastening device through the supporting device and through the apertures in the contact device for fastening the supporting device to the contact device, and the supporting device then a t the apertures enabling the cab to be tiltable with respect to the frame while remaining fastened to the frame. 
     
     
       6. The process of  claim 1 , further comprising supporting the cab over the frame until the contact device is secured to the supporting device and then releasing the support of the cab. 
     
     
       7. The process of  claim 1 , wherein the shaped portions of the contact device for resting on the supporting device are provided by the step of forming respective contact surfaces on the contact device which cooperate with the supporting device for positioning the contact device and the supporting device and thereby enabling the frame and the cab to be supported stable relative to one another. 
     
     
       8. The process of  claim 7 , further comprising the step of pushing a fastening device through the supporting device and through the apertures in the contact device for fastening the supporting device to the contact device, and the supporting device then at the apertures enabling the cab to be tiltable with respect to the frame while remaining fastened to the frame. 
     
     
       9. An arrangement for suspending a driving cab on a vehicle frame, the arrangement comprising: 
       a supporting unit applied to one of the frame and the cab and a contact device applied to the other of the frame and the cab;  
       the supporting unit having opposite sides; a supporting device extending through the supporting unit, the supporting device including a respective portion that protrudes from both sides of the supporting unit;  
       the contact device includes apertures that are alignable with the protruding portions of the supporting device and the contact device being securable to the supporting device at the apertures in the contact device;  
       wherein the contact device is shaped for resting on the protruding portions of the supporting device with the apertures in the contact device aligned with the supporting device.  
     
     
       10. The arrangement of  claim 9 , wherein the shaping of the contact device for resting on the supporting device comprises respective contact surfaces on the contact device which cooperate with the supporting device for positioning the contact device and the supporting device and enabling the frame and the cab to be supported stable relative to one another. 
     
     
       11. The arrangement of  claim 10 , wherein the contact surfaces are arcuate in shape and the protruding portions of the supporting device are rounded and are received in the arcuate contact surfaces of the contact device. 
     
     
       12. The arrangement of  claim 10 , further comprising a fastening device which is passed through the aperture in the contact device and is passed into the supporting device for supporting the contact device relative to the support device while the support device is freely rotatable in the supporting unit. 
     
     
       13. The arrangement of  claim 2 , wherein the supporting unit includes an elastic device at which the supporting device is supported for causing a springiness of the support of the front part of the cab with respect to the frame. 
     
     
       14. An arrangement of  claim 13 , wherein the elastic device in the supporting device includes an inner sleeve and the supporting device extending through the inner sleeve, the supporting device being freely rotatable within the sleeve; locking devices for locking the supporting device in the axial direction in the sleeve. 
     
     
       15. The arrangement of  claim 9 , further comprising a spacing element between the contact device and the cab. 
     
     
       16. The arrangement of  claim 9 , wherein the supporting unit is on the frame and the contact device is on the cab. 
     
     
       17. An arrangement for suspending a driving cab on a vehicle frame, the arrangement comprising: 
       a supporting unit applied to one of the frame and the cab and a contact device applied to the other of the frame and the cab;  
       the supporting unit having opposite sides; a supporting device extending through the supporting unit, the supporting device including a respective portion that protrudes from both sides of the supporting unit;  
       the contact device includes apertures that are alignable with the protruding portions of the supporting device and the contact device being securable to the supporting device at the apertures in the contact device;  
       wherein the supporting unit includes an elastic device at which the supporting device is supported for causing a springiness of the support of the front part of the cab with respect to the frame;  
       wherein the elastic device in the supporting device includes an inner sleeve and the supporting device extending through the inner sleeve, the supporting device being freely rotatable within the sleeve; locking devices for locking the supporting device in the axial direction in the sleeve; and  
       wherein the supporting device comprises a hollow pivot with outer end portions which protrude outside the supporting unit and the protruding portions of the pivot include recesses; the locking devices comprise locking rings disposed in the recesses for locking the hollow pivot supporting device against axial motion out of the supporting unit.  
     
     
       18. An arrangement for suspending a driving cab on a vehicle frame, the arrangement comprising: 
       a supporting unit applied to one of the frame and the cab and a contact device applied to the other of the frame and the cab;  
       the supporting unit having opposite sides; a supporting device extending through the supporting unit, the supporting device including a respective portion that protrudes from both sides of the supporting unit;  
       the contact device includes apertures that are alignable with the protruding portions of the supporting device and the contact device being securable to the supporting device at the apertures in the contact device;  
       wherein the supporting device comprises a hollow pivot with outer end portions which protrude outside the supporting unit and the protruding portions of the pivot include recesses; the locking devices comprise locking rings disposed in the recesses for locking the hollow pivot supporting device against axial motion out of the supporting unit.